CN104401837B - The safety tongs of curve motion elevator - Google Patents
The safety tongs of curve motion elevator Download PDFInfo
- Publication number
- CN104401837B CN104401837B CN201410742095.4A CN201410742095A CN104401837B CN 104401837 B CN104401837 B CN 104401837B CN 201410742095 A CN201410742095 A CN 201410742095A CN 104401837 B CN104401837 B CN 104401837B
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- caliper
- scotch block
- leaf spring
- lifting
- block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The safety tongs of a kind of curve motion elevator, belongs to elevator safety protection facility technology field.Including caliper, caliper top board sets upper block, caliper base plate sets guide wheel；C font leaf spring, is located at the front side in caliper chamber, is equipped with dynamic voussoir seat adjusting mechanism on the wall body of C font leaf spring；Lifting rod drive mechanism, is located in caliper chamber；Lifting rod, its upper end leans out caliper top board and constitutes lifting rod connection seat, lower end connection lifting plate；A pair slide block mechanism, is located between caliper top, base plate, and this respectively includes scotch block and braking voussoir to slide block mechanism, and feature: also include actuating unit, it is located on the car bottom girder of lift car；The left and right side plate of caliper respectively sets gyroaxis；A pair slide block mechanism respectively includes a pair being limited in guide plate, a roller frame and one group of roller.Ensure braking voussoir easy motion；Minimizing action transmission link；Meet coordinating and brake request of safety tongs and guide rail；Conveniently manufacture, cost-effective and conveniently installation and use.
Description
Technical field
The invention belongs to elevator safety protection facility technology field, be specifically related to the safety tongs of a kind of curve motion elevator.
Background technology
Safety tongs is the safety guard that elevator is indispensable, is typically mounted on elevator car rack or counterweight frame, the guarantee necessary to the safe operation offer of elevator.Above mentioned curve motion elevator refers to that the guide rail for elevator cage operation is curvilinear, and this guide rail is on such as light rail, subway, harbour, scenic spot, hillside and to include that Lao Lou is installed at the place of interior special building etc the most rarely seen.Owing to the guide rail for elevator cage operation is curvilinear, thus the running orbit of safety tongs and guiderail track there are differences, specifically, gap between safety tongs and guide rail can not be held in identical state all along, and gap is too small, is easily generated friction situation, cause safety tongs misoperation, otherwise because of between safety tongs and guide rail loose contact and enough frictional force cannot be produced, cause lift car slow down jogging, be especially difficult to stop.Therefore, safety tongs structurally should meet its running orbit running orbit with lift car as far as possible in the relation followed in sb's footsteps.
As is known in the industry, safety tongs self can not trigger, must by with limiter of speed with the use of, when elevator speed exceed elevator governor set restriction speed time the most overweight time, or in the case of suspension strop occurs fracture and relaxes, rope-clamping pliers is made to clamp speed limiter wire rope by the action of limiter of speed, speed limiter wire rope is out of service, now along with the lower operation of lift car, speed limiter wire rope is installed on the safety tongs linkage on the bottom girder of lift car or back timber by shift mechanism lifting, make safety tongs linkage action, drive safety tongs braking member and the guide rail contact of car both sides, make safety tongs clamping guide-rail, reach the stop of lift car.Meanwhile, on limiter of speed and safety tongs, the electric switch of configuration works, and the safety return circuit of cutting-off controlling system makes elevator traction machine quit work, it is ensured that take the passenger of the elevator life security under elevator overspeed state.
Above mentioned limiter of speed and safety tongs with the use of technical information such as Chinese patent CN1330032A(elevator governor), CN100575234C(elevator governor), CN102387977B(speed limiter for elevator) and CN101979299A(elevator governor), etc..By to being not limited to the reading of these patents that enumerates, owing to the action of safety tongs is all driven by steel wire rope, specifically, need to be equipped with limiter of speed, thus structure is relative complex, and action transmission link is many, and the response speed of safety tongs is the slowest.Especially, once wire cable rupture, then safety tongs cannot play a role.
Disclosed Chinese patent literature can be seen in use without being driven by the steel wire rope of limiter of speed save limiter of speed and can the technical information of safety tongs of fast braking during in elevator power-off, " safety tongs of lift car " recommended such as Authorization Notice No. CN201325827Y, this patent formula is by processing pit to the clamping face of voussoir (towards the surface of side of guide rail under use state), and in pit, it is bumped into brake pad, to increase the frictional force with guide rail, concrete technique effect can be found in this patent specification page 2 the 15th to 18 row, but there is following shortcoming: one, owing to losing coordinating between voussoir with sliding shoe rationally, thus lifting rod lifting voussoir up time resistance relatively large, impact and the clamping speed of guide rail, i.e. the stop speed of lift car is produced impact；They are two years old, although mentioning at Instructions Page 3: " lifting rod is by stop control; the technology contents of both annexations and stop is same as the prior art ", but do not put to the proof the concrete structure of stop of the prior art, and it is also not enough so that those skilled in the art come to realize the specific constructive form of stop according to specification teaching, but stop is as the driver part of lifting rod, lifting rod is then execution unit, therefore the whether reasonable action effect that can be directly connected to lifting rod of stop structure；Its three, owing to lacking guide and limit effect to voussoir, thus when lifting rod drives a pair wedge block movement, inevitably shake pendulum phenomenon, the overall clamping effect of impact and guide rail；Its four, limited owing to being designed by structure, thus be may not apply to the aforesaid guide rail for lift car curve motion.
And for example application for a patent for invention publication number CN101565145A is provided with " novel progressive safety tongs ", this patent application scheme eliminates lifting rod for aforementioned CN201325807Y, operation principle can be found in Instructions Page 3 the 8th to 20 row, but be in addition to electromagnet indispensability also has the external spring for forcing a pair lever arm motion outside the iron core spring making iron core move, known, the critical defect of spring is easily generated fatigue phenomenon, such as when the force fades that spring makes the top of a pair lever arm scold out each other, the clamping force of guide rail is just weakened by the brake rubber block of a pair lever arm bottom, affect stop effect, and this patent application scheme is not suitable with equally for aforesaid guide rail.
For another example application for a patent for invention publication No. CN101804934A introduces to be had " a kind of safety tongs ", the guide rail (the 0002nd section of the 6th to 10 row of specification) of the famous special guide rail the most aforesaid curve motion elevator that can be applied to arc of this patent, but do not provide caliper and the detailed construction of pincers block, do not provide the associated mechanisms as driving element for making pincers block and guide rail clamping, etc..
" a kind of progressive safety gear " is also had as Authorization Notice No. CN203497871U discloses, this patent formula has the 0013rd section of technique effect referred of its specification, but is in addition to make to equally exist outside baroque shortcoming the described shortcoming of aforementioned CN201325807Y because using double lifting rod.
And then as Authorization Notice No. CN203885761U is disclosed " elevator safety gear of a kind of Electromagnetic Control ", substantially understand according to this patent specification content: when power is off, solenoid (patent claims coil) dead electricity, iron core action, lifting rod is driven by iron core, driven a pair contract block (a pair contract block is connected on connecting plate with aspectant state) to move by lifting rod by connecting plate, and be clamped in guide rail and make lift car stop.But have the disadvantage that one, lose due to the structure of a pair voussoir and rationally such as lack the guiding of necessity with spacing, thus the stationarity moved is difficult to ensure；Its two, owing to directly being made lifting rod action by iron core, thus iron core need to be made to have enough active forces, and enough active forces that iron core to be ensured is to lifting rod, certainly will increase as the volume driving element coil；They are three years old, it is impossible to be applicable to aforesaid guide rail.
In view of above-mentioned prior art, still there is necessity of improvement, made positive and useful design for this applicant, define technical scheme described below, and under taking secrecy provision, the test center the applicant is simulated test, and result proves practicable.
Summary of the invention
The task of the present invention is to provide a kind of and contributes to as the most spacing guarantee braking voussoir easy motion of using with guiding of the braking voussoir of slide block mechanism, be conducive to making lifting rod use the volume reduced as the hydraulic mechanism driving element using less active force drive braking voussoir, it is of value to and matches with guide rail and use and meet safety tongs and be easy to the brake request of guide rail and having simplify overall structure and use and save manufacturing cost and install and the safety tongs of curve motion elevator easy to use.
The task of the present invention is performed by, a kind of safety tongs of curve motion elevator, including a caliper, it is provided with a upper block on the caliper top board of this caliper and in the side in the caliper chamber back to caliper, and and it being provided with a lower tumbler back to the side in caliper chamber equally on the caliper base plate of caliper, the position of upper and lower guide wheel corresponds to each other；One C font leaf spring, this C font leaf spring is arranged on the front side in described caliper chamber, and the opening in the C font leaf spring chamber of this C font leaf spring is towards the front side of described caliper, at the wall body faced each other of C font leaf spring and it is each provided with a scotch block guiding mechanism at correspondence position；One lifting rod drive mechanism, this lifting rod drive mechanism is arranged in described caliper chamber, and is positioned at the rear side in caliper chamber；The lifting rod that one short transverse being parallel to C font leaf spring chamber is arranged, the upper end of this lifting rod leans out described caliper top board and composition has a lifting rod to connect seat, this lifting rod connects seat and is connected with lifting rod drive mechanism, and connecting in the lower end of lifting rod has a lifting plate；A pair slide block mechanism, this is arranged on described caliper top in the position of the accent corresponding to described C font leaf spring chamber with the state faced each other to slide block mechanism, between base plate, and it is connected with described scotch block guiding mechanism and described lifting plate simultaneously, this respectively includes a scotch block and a braking voussoir to slide block mechanism, scotch block moves in the position of the accent corresponding to described C font leaf spring chamber and is arranged on described caliper top, between base plate, and it is connected with described scotch block guiding mechanism, braking voussoir is slidably matched with scotch block, and it is connected with described lifting plate, it is characterised by: also include an actuating unit, this actuating unit is arranged on the car bottom girder of lift car in a state of use, and it is connected with described lifting rod drive mechanism；Correspondence position on the left plate and right plate of described caliper and in the side back to described caliper chamber is each provided with single-revolution axle；A pair described slide block mechanism respectively includes and is limited in guide plate a pair, one roller frame and one group of roller, a pair spacing guide plate is arranged with the state faced each other, and the left side of the short transverse of spacing guide plate is slidably matched by this with described braking voussoir, and the right side of the short transverse of a pair spacing guide plate and described scotch block are fixed, roller frame is arranged between scotch block and braking voussoir, and connect in the middle position of the bottom of this roller frame and have one end of a roller frame extension spring, and the other end of roller frame extension spring is fixed on braking voussoir limiting plate, this braking voussoir limiting plate is fixed on described caliper base plate, one group of roller follows the short transverse interval setting of roller frame with transverse state, described braking voussoir contacts towards the side of one group of roller with one group of roller.
In a specific embodiment of the present invention, the caliper base plate of described caliper is provided with one position in screw probes into described caliper chamber for the C font leaf spring supporting location screw that described C font leaf spring is supported, the supporting of this C font leaf spring and contact with the bottom surface of C font leaf spring.
nullIn another specific embodiment of the present invention，Towards the side of caliper base plate and a scotch block upper embedded groove is offered in the position at the top corresponding to described scotch block at described caliper top board，And it is extended with scotch block support fins on described caliper base plate and in the position corresponding to a pair slide block mechanism，Caulking groove on this scotch block support fins and under the position of the bottom corresponding to described scotch block offers a scotch block，Constitute at the top of described scotch block and have a convex platform，And bottom composition has a lower convex platform，Convex platform matches with described scotch block upper embedded groove，Lower convex platform matches with caulking groove under described scotch block，Back to the side of described braking voussoir and a scotch block adjustment screw is offered in the position corresponding to described scotch block guiding mechanism at scotch block，Scotch block guiding mechanism is connected with scotch block in the position adjusting screw corresponding to this scotch block，A C font leaf spring is had to prop up bearing in the bottom of short transverse of scotch block and the position composition in the side back to described braking voussoir，Described C font leaf spring is bearing in this C font leaf spring and props up in bearing，Adjustment bolt hole is offered on described C font leaf spring and in the position corresponding to scotch block guiding mechanism，Scotch block guiding mechanism adjusts screw in the position corresponding to adjustment bolt hole with described scotch block and is connected.
nullIn another specific embodiment of the present invention，A spacing guide plate sliver mating groove is respectively offered at the front side of described braking voussoir and the correspondence position of rear side and the short transverse along braking voussoir，Constitute have a spacing guide plate sliver in each bending in left side of a pair described spacing guide plate，This spacing guide plate sliver is slidably matched with spacing guide plate sliver mating groove，The right side of a pair spacing guide plate respectively offers a pair spacing guide plate bolt hole，A pair scotch block bolt hole is offered on described scotch block and in the position corresponding to a pair spacing guide plate bolt hole，A pair spacing guide plate is fixed bolt in the position corresponding to a pair scotch block bolt hole by spacing guide plate and is fixed with scotch block by means of a pair described spacing guide plate bolt hole，Wherein: the bottom of described braking voussoir is corresponding with described braking voussoir limiting plate.
In another specific embodiment of the present invention, constitute in the middle position of the described lifting plate side towards described lifting rod and the length direction being positioned at lifting plate and have a lifting rod hinged seat, the lower end of described lifting rod is hinged with this lifting rod hinged seat, left end and right-hand member at lifting plate respectively offer a lifting shaft guide groove, a lifting axis hole is offered in the bottom of the short transverse of described braking voussoir, this lifting axis hole is equipped with a lifting shaft, this lifting shaft is inserted lifting bearing guide groove and is limited by clamping piece, and this clamping piece is jump ring or split pin.
Also having in a specific embodiment in the present invention, constitutes back to the surface of the side of described roller frame at described braking voussoir and has braking voussoir tooth.
In more and in a specific embodiment of the present invention, described scotch block guiding mechanism includes that an adjustment screw and adjusts screw spring, adjust screw be connected with described scotch block adjustment screw corresponding to the position adjusting bolt hole on described C font leaf spring, adjust screw spring to be nested with on adjustment screw, one end of this adjustment screw spring is bearing on C font leaf spring, and the other end is bearing in the end adjusting screw.
The present invention's and then in a specific embodiment, described lifting rod drive mechanism includes oil cylinder and lifting arm, oil cylinder is arranged in described caliper chamber in the position of the rear side corresponding to described C font leaf spring, and the oil cylinder post of this oil cylinder leans out described caliper top board, described lifting rod connects seat and is connected with the front end of lifting arm, and the rear end lifting arm is connected with oil cylinder post and is limited nut restriction by the lifting arm screwed on oil cylinder post, described actuating unit is connected with described oil cylinder hydraulic oil circuit.
In the most more and in a specific embodiment of the present invention, described actuating unit includes that motor and the hydraulic pump being connected with described oil cylinder hydraulic oil circuit, motor and hydraulic pump driving connect, and is arranged on the car bottom girder of lift car together with motor by hydraulic pump.
In again and then in a specific embodiment of the present invention, described upper block is rotatably arranged on upper block axle bed by upper block axle, and this upper block axle bed is fixed on described caliper top board；Described lower tumbler is rotatably arranged on lower tumbler axle bed by lower guide wheel shaft, and this lower tumbler axle bed is fixed on described caliper base plate in the position corresponding to upper block axle bed.
The technical scheme that the present invention provides is relative to one of the technique effect of prior art, owing to adding a pair spacing guide plate, a roller frame and one group of roller in the structural system of a pair slide block mechanism, thus braking voussoir can be had good spacing and guide effect, braking voussoir easy motion can be ensured；Two, due to lifting rod drive mechanism can effect direct to lifting rod and make lifting rod drive the braking voussoir of a pair slide block mechanism, be advantageous to minimizing action transmission link and can simplify as the structure of lifting rod drive mechanism driving element；Three, owing to being respectively arranged gyroaxis on the left plate of caliper and right plate, thus matched with the revolution axle bed on the bottom girder of lift car from gyroaxis and meet coordinating and brake request of safety tongs and guide rail；Four, owing to having abandoned limiter of speed, thus not only overall structure is effectively simplified, and convenient manufacture, cost-effective and convenient install and use.
Accompanying drawing explanation
Fig. 1 is first embodiment of the present invention structure chart.
Fig. 2 is the use view of the present invention.
Fig. 3 is the application examples schematic diagram of the present invention.
Fig. 4 is another embodiment of the present invention and uses view.
Detailed description of the invention
In order to enable the auditor especially public of Patent Office to be more clearly understood from technical spirit and the beneficial effect of the present invention, applicant will elaborate below by way of example, but the description to embodiment is not the restriction to the present invention program, the most pro forma rather than substantial equivalent transformation that is only done by any foundation present inventive concept is regarded as technical scheme category.
The most every relate to upper and lower, left and right, the directionality of front and rear or claim the concept of directionality be all for the figure location state described for, thus being particularly limited to of technical scheme that the present invention is provided can not be understood as.
Embodiment 1:
Refer to Fig. 1, this Fig. 1 shows: a caliper 1, side pivot on the caliper top board 11 of this caliper 1 and in the caliper chamber 12 back to caliper 1 is provided with a upper block 13, and and equally the side pivot in caliper chamber 12 is being provided with a lower tumbler 15 on the caliper base plate 14 of caliper 1, the position of upper and lower guide wheel 13,15 corresponds to each other, offer a cage guide groove 114 in the middle position of the front side of caliper top board 11, and be respectively fixed with a braking voussoir upper limit post 115 in the position of the both sides corresponding to cage guide groove 114；One C font leaf spring 2, this C font leaf spring 2 is arranged on the front side in described caliper chamber 12, and the opening in the C font leaf spring chamber 21 of this C font leaf spring 2 is towards the front side of caliper 1, at the wall body faced each other of C font leaf spring 2 and it is each provided with a scotch block guiding mechanism 22 at correspondence position；One lifting rod drive mechanism 3, this lifting rod drive mechanism 3 is arranged in caliper chamber 12, and is positioned at the rear side in caliper chamber 12；The lifting rod 4 that one short transverse being parallel to C font leaf spring chamber 21 is arranged, the upper end of this lifting rod 4 leans out caliper top board 11 and constitutes the lifting rod connection seat 41 having a shape u-shaped in the position of the lifting rod resigning hole 112 corresponding to being opened on caliper top board 11, this lifting rod connects seat 41 and is connected with lifting rod drive mechanism 3, and connecting in the lower end of lifting rod 4 has a lifting plate 42；A pair slide block mechanism 5, this is arranged on caliper top in the position of the accent corresponding to C font leaf spring chamber 21 with the state faced each other to slide block mechanism 5, base plate 11, between 14, and it is connected with scotch block guiding mechanism 22 and lifting plate 42 simultaneously, this respectively includes scotch block 51 and a braking voussoir 52 to slide block mechanism 5, scotch block 51 moves in the position of the accent corresponding to C font leaf spring chamber 21 and is arranged on caliper top the most adjustably, base plate 11, between 14, and it is connected with aforesaid scotch block guiding mechanism 22, braking voussoir 52 is slidably matched with scotch block 51, and it is connected with aforesaid lifting plate 42.
Structural system as the safety tongs of the curve motion elevator of the present invention also includes an actuating unit 6, this actuating unit 6 is arranged on (Fig. 2 and Fig. 3 shows) on the car bottom girder 81 of lift car 8 in a state of use, is each provided with single-revolution axle 7 on the left plate and right plate of aforementioned caliper 1 and at the respective correspondence position back to the side in aforementioned caliper chamber 12；nullAforesaid a pair slide block mechanism 5 respectively includes and is limited in guide plate 53 for a pair、One roller frame 54 and one group of roller 55，A pair spacing guide plate 53 is arranged with the state faced each other，And the position in the left side of the short transverse of spacing guide plate 53 is slidably matched by this with braking voussoir 52，And the right side of the short transverse of a pair spacing guide plate 53 is fixed with aforesaid scotch block 51，Roller subrack 54 is arranged between scotch block 51 and braking voussoir 52，And connect in the middle position of the bottom of this roller frame 54 and have one end of a roller frame extension spring 541，And the other end of roller frame extension spring 541 is fixed on braking voussoir limiting plate 542，This braking voussoir limiting plate 542 is fixed on aforementioned caliper base plate 14，The short transverse that one group of roller 55 follows roller frame 54 with transverse state is spaced setting rotationally，Aforementioned braking voussoir 52 contacts towards the side of one group of roller 55 with one group of roller 55.It can thus be appreciated that, due to roller frame 54 and the existence of one group of roller 55, making braking voussoir 52 indirectly be slidably matched with scotch block 51, and braking voussoir 52 is directly slidably matched with scotch block 51 by prior art, therefore the resistance of motion of the braking voussoir 52 of the present invention is minimum.
nullContinue to see Fig. 1，The caliper base plate 14 of aforementioned caliper 1 is provided with one for the C font leaf spring supporting location screw 16 that aforementioned C font leaf spring 2 is supported，In this C font leaf spring supporting location screw 16 is insinuated into aforementioned caliper chamber 12 and contact with the bottom surface of C font leaf spring 2，This C font leaf spring location screw 16 is equipped with pair of locking nut 161，One of them lock nut (lock nut of state top shown in Fig. 1) in lock nut 161 is contacted by this with the bottom surface of C font leaf spring 2，And another lock nut (lock nut of state bottom shown in Fig. 1) in pair of locking nut 161 and caliper base plate 14 are towards a side contacts in caliper chamber 12，The upper-lower position of C font leaf spring 2 can be changed by the regulation to C font leaf spring supporting location screw 16，After completing regulation, pair of locking nut 161 is locked.
nullTowards the side of caliper base plate 14 and a scotch block upper embedded groove 111 is offered in the position at the top corresponding to scotch block 51 at aforementioned caliper top board 11，And it is extended with scotch block support fins 141 on aforesaid caliper base plate 14 and in the position corresponding to a pair slide block mechanism 5，Caulking groove 1411 on this scotch block support fins 141 and under the position of the bottom corresponding to scotch block 51 offers a scotch block，Constitute at the top of aforementioned scotch block 51 and have a convex platform 511，And bottom composition has a lower convex platform 512，Convex platform 511 matches with aforesaid scotch block upper embedded groove 111，Lower convex platform 512 matches with caulking groove 1411 under described scotch block，Back to the side of aforementioned braking voussoir 52 and a scotch block adjustment screw 513 is offered in the position corresponding to aforementioned scotch block guiding mechanism 22 at scotch block 51，Scotch block guiding mechanism 22 is connected with scotch block 51 in the position adjusting screw 513 corresponding to this scotch block，A C font leaf spring is had to prop up bearing 514 in the bottom of short transverse of scotch block 51 and the position composition in the side back to aforementioned braking voussoir 52，Aforesaid C font leaf spring 2 is bearing in this C font leaf spring and props up in bearing 514，Adjustment bolt hole 23 is offered on C font leaf spring 2 and in the position corresponding to scotch block guiding mechanism 22，Scotch block guiding mechanism 22 adjusts screw 513 in the position corresponding to adjustment bolt hole 23 with aforementioned scotch block and is connected.
By the adjustment to scotch block guiding mechanism 22, the distance in opposite directions of the braking voussoir 52 of a pair slide block mechanism 5 can be changed, between aforesaid cage guide groove 114 is corresponding to the braking voussoir 52 of a pair slide block mechanism 5.As preferred scheme, also can aforesaid scotch block support fins 141 towards on side roller frame support plate screw 1421 fix a roller frame support plate 142, the lower support of aforesaid roller frame 54 is on this roller frame support plate 142.
As shown in Figure 1, aforesaid braking voussoir limiting plate 542 uses the bottom of braking voussoir limiting plate screw 5421 and caliper base plate 14 to fix, the more precisely bottom with scotch block support fins 141 is fixed, and lean out scotch block support fins 141, in order to the bottom supporting to aforesaid braking voussoir 52.And then, braking voussoir limiting plate 542 offers an extension spring fixing hole 5422, the other end of aforementioned roller frame extension spring 541 is fixed on braking voussoir limiting plate 542 in the position corresponding to this extension spring fixing hole 5422.
nullAs shown in Figure 1 and as a example by the location status shown in Fig. 1，A spacing guide plate sliver mating groove 521 is respectively offered at the aforesaid front side of braking voussoir 52 and the correspondence position of rear side and along the short transverse of braking voussoir 52，Constitute have a spacing guide plate sliver 531 in each bending in left side of aforesaid a pair spacing guide plate 53，This spacing guide plate sliver 531 is slidably matched with spacing guide plate sliver mating groove 521，It can thus be appreciated that，Spacing guide plate sliver 531 serves the effect of guide rail for spacing guide plate sliver mating groove 521，A pair spacing guide plate bolt hole 532 is respectively offered on the right side of a pair spacing guide plate 53，A pair scotch block bolt hole 515 is offered on aforementioned scotch block 51 and in the position corresponding to a pair spacing guide plate bolt hole 532，A pair spacing guide plate 53 is fixed bolt 533 in the position corresponding to a pair scotch block bolt hole 515 by spacing guide plate and is fixed with scotch block 51 by means of aforesaid a pair spacing guide plate bolt hole 532，And fitted over spacing guide plate and fix the nut 5331 of bolt 533 end by executing and limit.It has been observed that the bottom of braking voussoir 52 is corresponding with aforementioned braking voussoir limiting plate 542, play braking voussoir 52 holding effect by braking voussoir limiting plate 542.
nullStill see Fig. 1，Aforesaid lifting plate 42 towards the side of aforementioned lifting rod 4 and be positioned at lifting plate 42 length direction middle position constitute have a lifting rod hinged seat 421，The lower end of aforementioned lifting rod 4 is articulated and connected with this lifting rod hinged seat 421 by lifting rod hinging pin shaft，Left end and right-hand member at lifting plate 42 respectively offer one generally in oval lifting shaft guide groove 422，A lifting axis hole 522 is offered in the bottom of the short transverse of aforementioned braking voussoir 52，This lifting axis hole 522 is equipped a lifting shaft 5221，This lifting shaft 5221 is inserted lifting bearing guide groove 422 and is limited by clamping piece 52211，In the present embodiment，Clamping piece 52211 is split pin，But it is used as jump ring，When using jump ring，So in lifting shaft 5221, offer jump-ring slot，Owing to the present embodiment uses split pin to serve as clamping piece 52211，Thus offer cotter-pin hold in lifting shaft 5221.As preferred scheme, also spacer 52212 and a packing ring 52213 can be added in lifting shaft 5221 and in the position corresponding respectively to lift the both sides of plate 42.
And then, aforementioned braking voussoir 52 back to aforementioned roller frame 54 side i.e. back to the surface of the side of scotch block 51 constitute have braking voussoir tooth 523, if replacing the braking voussoir tooth 523 of schematic structure with groined type striped or floating-point shape flange, then equivalent should be considered as.
The structure preferably rather than being definitely limited to of aforesaid scotch block guiding mechanism 22 is as follows: include that an adjustment screw 221 and adjusts screw spring 222, adjust screw 221 be connected with aforementioned scotch block adjustment screw 513 corresponding to the position adjusting bolt hole 23 on aforementioned C font leaf spring 2, adjust screw spring 222 to be nested with on adjustment screw 221, one end of this adjustment screw spring 222 is bearing on C font leaf spring 2, and the other end is bearing in the end adjusting screw 221.
Aforesaid lifting rod drive mechanism 3 includes an oil cylinder 31 and lifting arm 32, oil cylinder 31 is arranged in aforesaid caliper chamber 12 in the position of the rear side corresponding to aforementioned C font leaf spring 2, and the oil cylinder post 311 of this oil cylinder 31 leans out aforesaid caliper top board 11 in the position of the oil cylinder post resigning hole 113 corresponding to being opened on caliper top board 11, aforesaid lifting rod is connected seat 41 and is connected with the front end lifting arm 32 by bearing pin 411, and the rear end lifting arm 32 is connected with oil cylinder post 311 and limited nut 3111 limit by screwing (by screw thread) lifting arm on oil cylinder post 311.Above mentioned actuating unit 6 is connected with oil cylinder 31 hydraulic circuit.
Above mentioned actuating unit 6 includes motor 61 and the hydraulic pump 62 being connected with oil cylinder 31 hydraulic circuit, motor connects (i.e. transmission coordinates) with hydraulic pump 62 transmission, and is arranged on the car bottom girder 81 of the lift car 8 illustrated by Fig. 3 together with motor 61 by hydraulic pump 62.As shown in Figure 2, the hydraulic pump of hydraulic pump 62 enters, return line 621,622 is connected with aforesaid oil cylinder 31, and according to general knowledge, hydraulic pump 62 is furnished with fuel tank 63, in i.e. hydraulic pump 62 is located at fuel tank 63, fuel tank 63 is arranged on car bottom girder 81 together with motor 61.
Above mentioned upper block 13 is rotatably arranged on upper block axle bed 132 by upper block axle 131, and this upper block axle bed 132 is fixed on aforesaid caliper top board 11；Above mentioned lower tumbler 15 is rotatably arranged on lower tumbler axle bed 152 by lower guide wheel shaft 151, and this lower tumbler axle bed 152 is fixed on aforementioned caliper base plate 14 in the position corresponding to upper block axle bed 132.
Embodiment 2:
Refer to Fig. 4, as shown in Figure 4, caliper 1 has additional an oil cylinder fixed plate 17, this oil cylinder fixed plate 17 is parallel with aforesaid caliper top board 11, the oil cylinder 31 of aforementioned lifting rod drive mechanism 3 is fixed in oil cylinder fixed plate 17, and the oil cylinder post 311 of oil cylinder 31 is towards caliper top board 11, i.e. oil cylinder post 311 stretches through oil cylinder fixed plate 17 towards the direction of lifting rod 4, is connected seat 41 and oil cylinder post 311 connects in the space that lifting arm 32 is formed between caliper top board 11 with oil cylinder fixed plate 17 and with lifting rod.It follows that oil cylinder 31 is removed caliper chamber 12 can produce the action effect to lifting rod 4 equally, and will be understood that equally and belong to technology contents category disclosed by the invention.Remaining is all with the description to embodiment 1.
Application examples:
Refer to Fig. 2 and Fig. 3 and combine Fig. 1, show that lift car 8(lift car 8 is shown by Fig. 3 at this Fig. 2 and Fig. 3) car bottom girder 81 and show for curve motion elevator run guide rail 9, the caliper 1 of the present invention is matched with the revolution axle bed 811 being arranged on (being fixed on) car bottom girder 81 by aforesaid gyroaxis 6, and aforesaid upper and lower guide wheel 13,15 constitutes rolling pair (contacting with the guide pass of guide rail 9) with guide rail 9.Under elevator is in running order, the present invention moves with lift car 8 with car bottom girder 81, and state evolution shown in upper and lower guide wheel 13,15(Fig. 2 is left and right guide wheel) against guide wheel 9 and move.Actuating unit 6 and lifting rod drive mechanism are in off working state, are i.e. in the state not to lifting rod 4 generation effect, remain rational gap, do not produce the clamping action to guide rail 9 between braking voussoir 52 and the guide rail 9 of a pair slide block mechanism 5.
When elevator speed is beyond the limit value of fixing speed, signal is given to actuating unit 6 by the elevator speed sensor of electric life controller, motor 61 is made to work, hydraulic pump 62 is driven by motor 61, the oil cylinder 31 being made lifting rod drive mechanism 3 by hydraulic pump 62 works, oil cylinder post 311 stretches outside cylinder body, oil cylinder post 311 drive lifting arm 32, lifting arm 32 drive lifting rod.As a example by the location status shown in Fig. 2: drive lifting rod 4 to left movement, owing to the braking voussoir 52 of a pair slide block mechanism 5 is respectively connected (the lifting shaft guide groove 422 that lifting shaft 5221 is placed in lifting plate 42) with lifting plate 42 by lifting shaft 5221, thus drive lifting shaft 5221 when lifting rod 4 is to left dislocation by lifting plate 42, lifting shaft 5221 drive braking voussoir 52 to left dislocation.Due to the braking voussoir 52 shape in truncated rectangular pyramids body, thus the braking voussoir 52 of a pair slide block mechanism 5 shows as closing up toward each other trend, is reliably clamped by correspondence guide rail 9 therebetween, makes lift car 8 stop on the rail 9, to ensure safety.In aforementioned process, owing to offering a pair spacing guide plate sliver mating groove 521 on braking voussoir 52, the spacing guide plate sliver 531 being limited in guide plate 53 due to a pair again constitutes sliding pair with spacing guide plate sliver mating groove 521, due also to braking voussoir 52 contacts towards the side of roller frame 54 with one group of roller 55, thus braking voussoir 52 is able to easy motion and drag minimization, it is ensured that guide rail 9 reliably clamped effect.
Claims (10)
1.The safety tongs of a kind of curve motion elevator, including a caliper (1) , at this caliper (1) Caliper top board (11) Go up and back to caliper (1) Caliper chamber (12) Side be provided with a upper block (13) , and at caliper (1) Caliper base plate (14) Upper and same back to caliper chamber (12) Side be provided with a lower tumbler (15) , upper and lower guide wheel (13 、 15) Position correspond to each other；One C Font leaf spring (2) , should C Font leaf spring (2) It is arranged on described caliper chamber (12) Front side, and should C Font leaf spring (2) 's C Font leaf spring chamber (21) Opening towards described caliper (1) Front side, C Font leaf spring (2) The wall body faced each other and be each provided with a scotch block guiding mechanism at correspondence position (22) ；One lifting rod drive mechanism (3) , this lifting rod drive mechanism (3) It is arranged on described caliper chamber (12) In, and it is positioned at caliper chamber (12) Rear side；One is parallel to C Font leaf spring chamber (21) Short transverse arrange lifting rod (4) , this lifting rod (4) Upper end lean out described caliper top board (11) And constitute and have a lifting rod to connect seat (41) , this lifting rod connects seat (41) With lifting rod drive mechanism (3) Connect, at lifting rod (4) Lower end connect have a lifting plate (42) ；A pair slide block mechanism (5) , this is to slide block mechanism (5) Corresponding to described C Font leaf spring chamber (21) The position of accent be arranged on described caliper top, base plate with the state faced each other (11 、 14) Between, and simultaneously with described scotch block guiding mechanism (22) And described lifting plate (42) Connecting, this is to slide block mechanism (5) Respectively include a scotch block (51) With a braking voussoir (52) , scotch block (51) Corresponding to described C Font leaf spring chamber (21) The position of accent move and be arranged on described caliper top, base plate (11 、 14) Between, and with described scotch block guiding mechanism (22) Connect, brake voussoir (52) With scotch block (51) Be slidably matched, and with described lifting plate (42) Connect, it is characterised in that: also include an actuating unit (6) , this actuating unit (6) Be arranged in a state of use on the car bottom girder of lift car, and with described lifting rod drive mechanism (3) Connect；At described caliper (1) Left plate and right plate on and back to described caliper chamber (12) The correspondence position of side be each provided with single-revolution axle (7) ；A pair described slide block mechanism (5) Respectively include and be limited in guide plate a pair (53) , a roller frame (54) With one group of roller (55) , a pair spacing guide plate (53) Arrange with the state faced each other, and this is to spacing guide plate (53) Left side and the described braking voussoir of short transverse (52) It is slidably matched, and a pair spacing guide plate (53) Right side and the described scotch block of short transverse (51) Fixing, roller frame (54) It is arranged on scotch block (51) With braking voussoir (52) Between, and at this roller frame (54) Bottom middle position connect have a roller frame extension spring (541) One end, and roller frame extension spring (541) The other end be fixed on braking voussoir limiting plate (542) On, this braking voussoir limiting plate (542) It is fixed on described caliper base plate (14) On, one group of roller (55) Roller frame is follow with transverse state (54) Short transverse interval arrange, described braking voussoir (52) Towards one group of roller (55) Side and one group of roller (55) Contact.
2.According to claim 1 The safety tongs of described curve motion elevator, it is characterised in that at described caliper (1) Caliper base plate (14) On be provided with one for described C Font leaf spring (2) Supporting C Font leaf spring supporting location screw (16) , should C Font leaf spring supporting location screw (16) Probe into described caliper chamber (12) In and with C Font leaf spring (2) Bottom surface contact.
3.According to claim 1 The safety tongs of described curve motion elevator, it is characterised in that at described caliper top board (11) Towards caliper base plate (14) Side and corresponding to described scotch block (51) The position at top offer a scotch block upper embedded groove (111) , and at described caliper base plate (14) Go up and corresponding to a pair slide block mechanism (5) Position be extended with scotch block support fins (141) , at this scotch block support fins (141) Go up and corresponding to described scotch block (51) The position of bottom offer caulking groove under a scotch block (1411) , at described scotch block (51) Top constitute have a convex platform (511) , and bottom composition has a lower convex platform (512) , convex platform (511) With described scotch block upper embedded groove (111) Match, lower convex platform (512) With caulking groove under described scotch block (1411) Match, at scotch block (51) Back to described braking voussoir (52) Side and corresponding to described scotch block guiding mechanism (22) Position offer one scotch block adjust screw (513) , scotch block guiding mechanism (22) Screw is being adjusted corresponding to this scotch block (513) Position and scotch block (51) Connect, at scotch block (51) Short transverse bottom and back to described braking voussoir (52) Side position constitute have one C Font leaf spring props up bearing (514) , described C Font leaf spring (2) It is bearing in this C Font leaf spring props up bearing (514) On, described C Font leaf spring (2) Go up and corresponding to scotch block guiding mechanism (22) Position offer adjustment bolt hole (23) , scotch block guiding mechanism (22) Corresponding to adjusting bolt hole (23) Position and described scotch block adjust screw (513) Connect.
4.According to claim 1 The safety tongs of described curve motion elevator, it is characterised in that at described braking voussoir (52) Front side and the correspondence position of rear side and along braking voussoir (52) Short transverse respectively offer a spacing guide plate sliver mating groove (521) , at a pair described spacing guide plate (53) The each bending in left side and constitute and have a spacing guide plate sliver (531) , this spacing guide plate sliver (531) With spacing guide plate sliver mating groove (521) It is slidably matched, a pair spacing guide plate (53) Right side respectively offer a pair spacing guide plate bolt hole (532) , at described scotch block (51) Go up and corresponding to a pair spacing guide plate bolt hole (532) Position offer a pair scotch block bolt hole (515) , a pair spacing guide plate (53) Corresponding to a pair scotch block bolt hole (515) Position fix bolt by spacing guide plate (533) By means of a pair described spacing guide plate bolt hole (532) With scotch block (51) Fixing, wherein: described braking voussoir (52) Bottom and described braking voussoir limiting plate (542) Corresponding.
5.According to claim 1 The safety tongs of described curve motion elevator, it is characterised in that at described lifting plate (42) Towards described lifting rod (4) Side and be positioned at lifting plate (42) Length direction middle position constitute have a lifting rod hinged seat (421) , described lifting rod (4) Lower end and this lifting rod hinged seat (421) Hinged, at lifting plate (42) Left end and right-hand member respectively offer a lifting shaft guide groove (422) , at described braking voussoir (52) The bottom of short transverse offer a lifting axis hole (522) , at this lifting axis hole (522) On be equipped with a lifting shaft (5221) , this lifting shaft (5221) Insert lifting bearing guide groove (422) And by clamping piece (52211) Limit, this clamping piece (52211) For jump ring or split pin.
6.According to claim 1 The safety tongs of described curve motion elevator, it is characterised in that at described braking voussoir (52) Back to described roller frame (54) Side surface constitute have braking voussoir tooth (523) 。
7.According to claim 3 The safety tongs of described curve motion elevator, it is characterised in that described scotch block guiding mechanism (22) Including an adjustment screw (221) Screw spring is adjusted with one (222) , adjust screw (221) Corresponding to described C Font leaf spring (2) On adjustment bolt hole (23) Position and described scotch block adjust screw (513) Connect, adjust screw spring (222) It is nested with and is adjusting screw (221) On, this adjustment screw spring (222) One end be bearing in C Font leaf spring (2) On, the other end is bearing in adjustment screw (221) End.
8.According to claim 1 The safety tongs of described curve motion elevator, it is characterised in that described lifting rod drive mechanism (3) Including oil cylinder (31) With lifting arm (32) , oil cylinder (31) Corresponding to described C Font leaf spring (2) The position of rear side be arranged on described caliper chamber (12) In, and this oil cylinder (31) Oil cylinder post (311) Lean out described caliper top board (11) , described lifting rod connects seat (41) With lifting arm (32) Front end connect, and lift arm (32) Rear end and oil cylinder post (311) Connect and by screwing at oil cylinder post (311) On lifting arm limit nut (3111) Limit, described actuating unit (6) With described oil cylinder (31) Hydraulic circuit connects.
9.According to claim 8 The safety tongs of described curve motion elevator, it is characterised in that described actuating unit (6) Including motor (61) And with described oil cylinder (31) The hydraulic pump that hydraulic circuit connects (62) , motor (61) With hydraulic pump (62) Transmission connects, and by hydraulic pump (62) Together with motor (61) It is arranged on the car bottom girder of lift car.
10.According to claim 1 The safety tongs of described curve motion elevator, it is characterised in that described upper block (13) By upper block axle (131) It is rotatably arranged at upper block axle bed (132) On, and this upper block axle bed (132) It is fixed on described caliper top board (11) On；Described lower tumbler (15) Pass through lower guide wheel shaft (151) It is rotatably arranged at lower tumbler axle bed (152) On, and this lower tumbler axle bed (152) Corresponding to upper block axle bed (132) Position be fixed on described caliper base plate (14) On。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742095.4A CN104401837B (en) | 2014-12-08 | 2014-12-08 | The safety tongs of curve motion elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742095.4A CN104401837B (en) | 2014-12-08 | 2014-12-08 | The safety tongs of curve motion elevator |
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| CN104401837A CN104401837A (en) | 2015-03-11 |
| CN104401837B true CN104401837B (en) | 2016-09-07 |
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| CN111776911B (en) * | 2020-07-20 | 2024-05-03 | 台州学院 | Failure-proof elevator safety tongs and elevator |
| CN112744663B (en) * | 2021-01-21 | 2022-06-14 | 郑州铁路职业技术学院 | Vertical elevator emergency braking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2598968Y (en) * | 2003-02-20 | 2004-01-14 | 刘文久 | Step-by-step safety tongs |
| JP5137507B2 (en) * | 2007-09-11 | 2013-02-06 | 三菱電機ビルテクノサービス株式会社 | Elevator car holding device |
| CN201494982U (en) * | 2009-05-18 | 2010-06-02 | 杭州沪宁电梯配件有限公司 | Novel safety tongs |
| CN101575062B (en) * | 2009-05-18 | 2011-05-11 | 杭州沪宁电梯配件有限公司 | Asymmetric progressive safety gear |
| CN204355901U (en) * | 2014-12-08 | 2015-05-27 | 苏州莱茵电梯制造有限公司 | The safety tongs of curve motion elevator |
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Address after: Changshou City ancient town Suzhou city Jiangsu province 215532 by road Applicant after: SUZHOU HUBSCHMANN RHEIN ELEVATOR CO., LTD. Address before: Suzhou City, Jiangsu province Changshou City 215551 yuanyangqiao Shanghu Town Industrial Park Applicant before: Suzhou Rhine Lift Manufacture Co., Ltd. |
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